Genesis Offroad Upgrade--But Does it "Math"

[AndySpill]

99.999999% of owners don't do this

Agreed; and you didn't know this about me before you replied.

I guess forum posts serve to advise both the OP in specific and whatever nuances they bring to the table, as well as speak to sound advice for the masses who conform to more predictable ownership trends.

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[Nokones]

My Genesis Gen 3 Dual Odyssey Group 25 batteries/System with Engine On Sensor on my 23 Wrangler Rubi 2 Dr. 3.6L e-Torque is functioning just fine and I have plenty of power for my Dometic refrigerator, and my other heavy power draw accessories.

Just about every time I get in my vehicle after a couple days, I know that the two batteries are not connected. Also, I know what the voltage level is in each battery before I start the vehicle.

When I start my vehicle, I know the starting system is powered from the starting battery only because my accessory battery is not connected at that time. The Gen 3 Power Hub controls that.

After a couple of minutes of starting the vehicle, the power hub connects the two batteries together so the charging system will charge the two Gen 3 System batteries. I know when the two batteries do connect together, if I want them too, and I do.

My vehicle has the 48V Lithium battery in the rear and I have the Auto Stop/Start Eliminator Harness installed to keep that feature disabled after I start the vehicle. So, that means I don't have a F42 fuse and the little itty bitty battery under my fuse box.

Do I have power sag, maybe, maybe not, I don't know and I really don't care. What I do know is my starter battery will not be runned down by my accessories that are connected/powered by Gen 3 accessory battery, and as long that I don't run down my starter battery, and if I do, I will always have the ability to start my vehicle without using jumper cables.